Steam or hot-water heater.



116.717,52?. PATENTED JAN.6,1-9os.

J., o. RARRETT.

STEAM 0R EOT WATER HEATER.

' `AAPILIJA'IQION FILED MAB.. 18, 1902.

I0 MODEL.

UNITED STATES PATENT OFFICE.

JOHN C. BARRETT, OF WASHINGTON, PENNSYLVANIA.

STEAM OR HOT-WATER HETER.

SPECIFICATION forming part of Letters Patent No. 717,527, dated January 6, 1903.

Application iiled March 18,1902. Serial No. 98,748. (No model.)

To a/ZZ whom it may concern:

Be it known that I, JOHN O. BARRETT, a citizen of lthe United States, residing at Washington, in the county of Washington and State of Pennsylvania, have invented or discovered new and useful Improvements in Steam or Hot-Water Heaters, of which the following is a specification.

In the accompanying drawing, which makes part of this specificatiomthe figure shows my invention in longitudinal vertical section.

The object of my invention is to provide a steam 0r hot-water heater for the heating of houses or rooms which shall be efficient, simple, and cheap.

The heaters in use are considerably complicated, and therefore expensive to make and operate. Ihave provided an apparatus which produces a very large amount of effective heat with the least amount of fuel.

In constructing my heater I take two pieces 1 and 2 of tough gas or wrought-iron pipe of suitable length and diameter and screw on each end iron caps 3 and 4. The pipes 1 and 2 are connected together by tubes 5, preferably screwed into the same, and all are supported on bars a or in any other suitable way. The lower pipe 2 has below it a gas-burner 5', to which gas is regulated by the valve 6, whose arm 7 is connected by link 8 to an automatic regulator, which opens or closes the valve as the pressure in ltube 1 becomes too low or too high. Any form of regulator may be used; but I-have shown the same as consisting of an arm 9, pivotally connected to the post 10, and of a piston-rod 11, pivoted to the arm 9 and provided with piston 12, fitting cylinder 13, which is open to the pipe 1, as shown. A weight 13' is adjustable along the end of arm 9 opposite the end to which link 8 is attached.

The tubes are provided with the usual safetyvalve 14, pressure-indicator 15, and watergage 15. The tubes and the burner are entirely iuclosed in a brick chamber 16, which retains the heat of the burner about the pipes as much as possible. The products of combustion pass into the stack 17.

The caps 4 4. of the pipes 1 and 2 are provided with small tubes 18 and 19, respectively. These tubes 18 and 19 are screwed into holes in the caps and are provided with ordinary check-valves 20 and 2l, the former preventing water from passing therethrough into pipe 1 and the latter preventing water from passing therethrough out of pipe 2. The checkvalves cause a constant circulation, so that hot Water or steam will reach every part of the system and all cooled water and dead steam will be forced to return to the pipes l and 2 to be again heated.

Pipes 18 and 19 are connected to pipes 22 and 23, leading to and from steam or hot-water radiators (not shown) located at selected places in a house or other structures.

24 is a pipe for feeding water from an eX- ternal source into the pipes. The pipe 24. is controlled by a valve or cock 25.

26 is a valve or cock in pipe 23 and is normally open; but when water is entering' through pipe 24. or when repairs are to be made it may be closed.

The operation is as follows: If the heater is to be used in a hot-water heating system, both tubes 1 and 2 and all the pipes and radiators of the system are lled with water. The burner 5' is lighted, the flames playing about both pipes and the connecting-tubes 5. As the water becomes heated it expands slightly and becomes lighter than its volume of colder water, which therefore descends and pushes the Warmer water out through pipe 18, whence it descends to the radiators and becoming cooler descends and returns to pipe 2 by way of tube 19. The check-valves compel the Water to circulatein a constant direction. If the heater is to be used with steamradiators, the upper pipe 1 is not supplied with water or is only partly filled. The circulation is the same as when water is used as the. carrier of heat. When the pressure in the tubes becomes high enough to lift piston 12, the valve 6 is partially closed, cutting off a part of the gas supply. In consequence thereof the heat in the chamber 16 is reduced and the pressure on piston lessened. When the pressure has been reduced sufficiently, weight 13 causes piston 12 to descend and the gas-valve 6 to be opened.

It willbe seen that I have provided a heater made from materials already on the market which require but small changes to convert them into my apparatus.k It occupies but IOO small space, and the heat is so confined as to be largely absorbed by the water and steam and to produce an intense heat in a short time.

Having described my invention, what I claim, and desire to secure by Letters Patent of the United States, is-

1. In a steam or hot-Water heating system, a set of heating-tubes, a portion of which is adapted for use as a steam-reservoir, connections between the same, a burner for heating the tubes, and a chamber inelosing allot' said tubes and connections.

2. In a steam or hot-Water heating system, a set of heating-tubes, a portion of which is adapted for use as a steam-reservoir, screwoap closures for the ends thereof, threaded connections between the tubes, a burner for heating*r the tubes, a chamber inelosing all of said tubes and connections, and Valved inlet and outlet pipes connected to the caps of the tube.

3. In a steam or hot-water heating system, two Wrought-iron pipes a screw-cap at eachend thereof, connecting-tubes between said pipes and threaded into thev same, a tube screwed into the end cap of each tube, a cheek-Valve associated with each of the lastnamed tubes, a burner for heating said pipes and said connections and a chamber inelosing said pipes and connections.

4E. In a steam or hot-water heating system, two wrought-iron pipes, a screw-cap at each end thereof, connecting-tubes between said pipes and threaded into the same, a tube screwed into the end cap of each tube,a cheek- Valve associated with each of the last-named tubes, a `gas-burner for heating said pipes and said connections, a brick chamber inelosing said pipes and connections, a water-gage, a safetyvalve,and an automatically-controlled gas-Valve for the burner.

Signed at Washington this 20th day of February, 1902.

JOHN C. BARRETT.

Witnesses:

ERNEST WALTZ, M. E. LENNOX. 

